Stove-top construction



4 March 27,1928.

' gwue'ntom A. TII QNERMAN STOVE TOP CONSTRUCTION Filed Feb. 4. 1927 Patented Wiles, ea, teas.

entree srATes I teat ALBERT H. TINNEBIQEAN, OI CLEVELAND, OHIO.

s'rovn-ror consrnocrron.

Application filed February 4, 1927. Serial No. 165,833.

Gas ranges have heretofore been made with either the open top or solid top grate frame construction. To change an open top to.a closed top range, it has been necessary to dismantle substantially the entire stove and to break the connections which hold the enameled panels in .place. The solid top stove is frequently more desirable since it permitsqthe escape of the products of comin bustion to the flue iIi a more effective manner than the open top range. Experiments have indicated however, that in most ranges,

- the distance between the burner and the article to be heated is not sufficient to insure the greatest efficiency in the transfer of heat? -Anobject of'the present invention there-' fore is to provide means for enabling an open top to be readily converted into a closed top range. In this connection, my ao invention is directed toward the use of a closed or solid top construction by means of which the products of combustion may be effectively conveyed to the flue, and the operating efficiency in so far as the transfer of heat is concerned may be substantially in-' creased.

I In the drawings Fig. 1 is-a perspectlve view of a part of a stove having an open 1120p grate; Fig. 2 is a perspective viewlof so meeting the grate frame and short panel to the oven structure; Fig. 3 is a persp ctive view showing the solid top embodying my invention, in, place of the open top grate,

to that shown in Fig. 2 and shows the solid top attachment inplace of the open top grate frame, and Fig. 5 is a horizontal section through-the connection between the oven frame and-filler plate.

on which an open top grate frame 11 is supported. As shown in Fig; 2 this grate frame has a lug 12 through which a threaded securing member 13 may extend. This securing member functions to lock the oven frame 14 to'the grate frame. Surmounting the grate frame is a filler plate 15 and aside panel 16. The, filler plate is preferably a cast member having inturned flanges along the top and bottom edges and also along the end edges. The end flanges engage 'the respective'front and rear oven frames, while the top and bottom flanges engage respec- 5 tively the panel 16 and the grate frame part of a stove showing the manner of con-- while Fig. 4 is a perspective view similar The range shown in. Fig. 1 has a frame 10.

The panel 16 is preferably an enameled member, while the filler plate 15 is preferabky made of an aluminum alloy.

T-he filler plate is arranged .to be removable preferably independently of'the panel 16, and without disturbing any of the lining or burner connections. To this end, I provide flexible connecting means between the filler plate and the front and rear frames.

One suitable connection is shown in Fig. 5 as comprising a screw threaded member 21 which is carried by each flange 22 and is arranged to engage a recess 23 in the asso-' ciated end frame member. To remove such filler plate, it is only necessary to loosen the member 13 sufficiently to allow the filler plate to be withdrawn from engagement with the frame. By loosening the member 13 the rear frame being flexible may be sprung outwardly at the mid-portion until it clears the head of the member 1.

\Vhen the fillerplate is remo ed, then the grille work upon the open top frame may also be removed and a solid top member 20, having lugs 24 thereon, may be inserted into the grille receiving recesses upon the grate frame. These lugs are spaced at proper int-ervals to afford an even'bearing for the top 20, and are sufficiently long to brin the. plane of the upper surface of the solid top above theplane of the top surface on the grate frame. In this way I increase the effective distance between the burner and the bottom of the article to be heated.

' To exhaust the products of combustion, I prefer to extend the end portion 25 upwardly so as to effect a snug engagement with the bottom flange of the panel 16. Thus, the

space formerly occupied by the filler plate provides a passageway which affords communication between the bottom of the solid top and the flue 30. Moreover, sincethat portion of the top adjacent the oven is extended upwardly, then the products of comthe grille work on the grate frame, and substitutin-g an attachment in the nature of asolid top, in place of the grille work. This [change can be readily, effected in an expeditious manner without disturbing the lining or burner connections, or any of thevlarge panels.

I claim:

1. In a stove, the combination with a grate frame, of a removable grille mounted thereon, and a solid top adapted to be interchangeably positioned with the grille upon the frame, said top having the plane 'ofthe upper surface thereof disposed above the] plane of the upper surface of said frame,

1 and'ha-ving a gas passageway associated with one edgethereof. v

2. In a stove, the combination with a grate frame having an open-wm'k grille thereon,

: a solid top removably positioned upon the frame and having the plane of the top sun face thereof disposed abovethe plane of the top surface of said frame,- and having a gas passageway extending along one edge thereof. v p

3. In a stove, the (.Oll'lbllliltlOIl with a grate T frame, ofa removable solid top adapted to be positioned upon the frame in such. manner that the plane of the upper surface of the top is disposed above the plane of the a portion. of the top engaging the bottomo Y said panel. and cooperating with a. part of the frame to provide a gas passage-way,-said passage-way extending substantially the entire width ofsaid panel; i

' 5. In a store, the combination with a flue, of agrate frameyan oven sitepanel surmounting the frame, a removable filler plate disposed between the panel and frame, a

stove top adapted to be positioned upon the frame I having a portion thereof arran ed to enter the filler plate space when the fi ler plate is removed, said portion cooperating with the panel and frame to-provide a gas passage-way between the under side of the top and the flue. I p

6. In a stove, the combination with a grate frame,'of a paneljsurm'ounting the frame, a

filler plate cooperating with the panel to form one wallof an oven structure, said plate being disposed between the panel and frame, flexible means for holding the filler plate in posit-ion but permitting removal ofsamewithout disturbing the panel connections, a stove top adapted to be positioned upon the frame and having the plane of the:

upper surface thereof disposed above the p ane .of the upper surface of the frame and having the edge portion near the oven extending upwardly and into the spaceoceupied by the? filler plate,*said filleri plate hem removable when the top is positioned on the'frame, saidupwardly extending portion of the top cooperating with thepanel 4 I and frame to provide a gas passage-way,

and said passage-way extending substantially across the entire width of said panel.

In testimony whereof, I hereunto aflix my signature. 1

ALBERT H. TINNERMAN; 

